unknown
There is no visible belief evolution here because there is barely any visible belief content at all. In both archived snapshots, dated January 11, 2016 and June 26, 2017, the provided excerpt shows only Wayback banner material and archive metadata, not Praetego's own mission, theory, or worldview text. So any claim about a shift in company beliefs would be guesswork dressed up as analysis, which is still guesswork. What stayed stable is the absence of usable evidence in the supplied excerpts. Across both dates, the record does not show a stated philosophy, strategic thesis, or even a marketing line we could compare over time. That means the honest reading is not "their beliefs were consistent" so much as "the available snapshots do not let us see them." So the change over time appears to be none, but only in the narrow sense that the evidence is equally thin at both points. If you want an actual belief-evolution summary rather than an archaeological shrug, you need fuller page captures or internal/company-authored text from those periods.
